Belt.



H. KIDA.

BELT.

APPLI CI\TION FILED JUNE 5| 1911.

m1 Apr. 23 19m HANNQSUKE KIDA, OF KOBE, JAPAN.

BELT.

Specification of Letters Patent.

Patented Apr. 23, 1918.

Application filed June 5, 1917. Serial No. 172,915.

To all whom it may concern:

Be Be it known that HANNOSUKE KIDA, a subject of the Emperor of Japan, residing at No. 59 Nishide-Machi, city of Kobe, Japan, have invented new and useful Improvements in Belts, of which the following is a specification.

This invention relates to belts comprising connected series of wire helices and consists mainly in providing such spirals with textile filling whereby all the interstices of the wire fabric are occupied by nonanetallic and relatively soft material. lhe object of said invention is to provide a durable belt which will fit more perfectly the periphery of a pulley than is practicable with all-wire belting and which will be guarded against undue elongation, though permitting proper flexibility both transverse and longitudinal.

To this end the said invention consists in the construction hereinafter more particularly set forth and claimed.

In the accompanying drawings Figure l is a plan of a part of a belt made in accordance with this invention.

Fig. 2 represents a cross-section through a belt constructed in accordance with this invention, the helices of wire being arranged as in Fig. 3, but having their coils flattened into elliptical form;

Fig. 3 represents a cross-section of some of the wire helices enlarged, arranged and interlacing as in Fig. 2, but before flattening, the filling being omitted;

Fig. 4 represents a similar view, on the same scale as Fig. 3, taken on the line 44 of Fig. 1, in which the coils overlap without interlacing, this view omitting the filling and being taken before the flattening of the coils; and

Fig. 5 represents a similar view on a smaller scale of the helices interlacing as shown in Fig. 3, this view also being taken before flattening of the coils, but difiering therefrom in having the interlaced parts of the helices in immediate engagement or contact with each other instead of leaving small intervals as in Fig. 3.

The same reference characters indicate corresponding parts in each of the figures.

In the drawings, (a) designates the wire helices, each of which is interlocked with the adjacent one in the way shown in Figs. 2, 3 and 5, or they are intercrossed as shown in Fig. 4.

(b) is the filling which may be made of cotton thread or the like fiber, inserted into all the spaces (6) inclosed by the wire helices and filling them up.

l/Vhen the belt is composed in the above mentioned way, it is referable to flatten the wire helices into suclia form as illustrated in Fig. 2.

Belts having the all-wire construction heretofore used, even though embodying parallel and interlocking helices have been found too stiff, lacking the requisite flexibility. The belt made in accordance with this invention has a sufficient elasticity and a sufficient flexibility in the transverse direction and also as each wire helix may swing independently of the adjacent helices it will make a perfect contact with the periphery of the pulley, even though the diameter of the pulley be very small.

As the friction on the pulley is increased, the transmission efliciency will be increased considerably and neither a narrow bend of the belt nor extreme dryness will develop any defect on the surface of the belt.

As the metallic part of the belt is composed of a series of the helically wound wires and as these longitudinal helices are interlocked with each other, the belt has a high resistance against longitudinal tension.

The composition and construction of the belt may be modified without any departure of the principle of this invention.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what l claim is- 1. A belt composed of a series of longitu- V dinal mutually overlapping wire helices and of non-metallic yielding material filling the spaces inclosed by said helices.

2. A belt composed of a series of longitudinal mutually overlapping and interlacing wire helices and of yielding material filling the spaces within said helices.

3. A belt composed of a series of longitudinal mutually overlapping wire helices and of non-metallic fibrous material filling the name to this specification in the presence of 7 spaces Within said helies. two subscribing witnesses.

4. A belt composed 0 a series of mutually overlapping flattened Wire helices and of HANNOSUKE KIDA 5 yielding material filling the spaces Within Witnesses:

said helices. SHUNJO Kmosnrm, In testimony whereof I have signed my TETSUYA NUMATA.

five cents each, by addressing the Commissioner of Patents,

Copies of this patent may be obtained for a Washington, D. 0." 

